<div class="login">
    <form class="d-b ta-c">
        <div class="form-line ta-l p-r">
            <span class="account va-t"></span>
            <input  type="text" placeholder="请输入手机号">
        </div>
        <div class="form-line ta-l p-r">
            <span class="lock va-t"></span>
            <input  type="text" placeholder="请输入密码">
        </div>

        <button class="login-btn">登录</button>
        <button class="register-btn" ui-sref="register">注册</button>
    </form>
</div>